Dental film holder



W. 0'. HUSE.

- nimm mm'nowm. APFLIQATION F5115 fh. 3, $920.

Pnted 5am, EL E922;

MSE?? a if@ INVEMTUR UNITED PATENT ,ori-#icm i wiILLIAM o. HoUsER, orLINCOLN, iLLINoIrr DENTA'LFILM HOLDER] i Specification of LettersPatent. :Paten .ITO all .whom t .may lcncer/n l .a citizen of 'the'United States, residing at Jed Je@ .315-1922,

ApplicationA led March 3, 1920. Serial No. 362,950

F ig.v lG ai's a side elevation illustratiA y' modification hereinafterreferred to.' ng a i In the .present instance the film-holder consistspreferably of a metal strip 7 bent 1 60 Be it known that I, WiLLI-M'-O.. HoUsER,

Lincoln` in the county of Logan'and State 'of Illinois, have inventedImprovements in 4Dental Film Holders, of which -the following is a fu'lland completespeciication.

My invention is an improvement in film holders of that particulartype'which are used in connection With X-ray apparatus for taking.pictures of the teeth of a` patient forthe purpose 'offacilitatingfthetreatment ofthe patient back of and in to said teeth-the cone .ofthe .tusrmust be adjustedsothaft the projection f of the rays will -beperpendicular tothe the same by: the dentist.

In order that-'a good -lpicture of to be treated'm'ay be taken itisnecessary that when the film is arranged inthe Imouth l'oper relationplane of the lm; and in order to accomplish this I combinewiththe'film-holder a relmovable attachment `.that Willcori'ectly indicatethe exact position of the ilin .and provide a guide for readily andaccurately adjusting the cone for the required exposure.

- For-this purpose the film-holder in the pres- .ent instance isprovided with a'smal-l tube -disp'eseftl..at right angles tothe plane:of the 'Hlm supported in said film-holder, and 1n f in connectiontherewith employ agspider` 0.1'

- erpendicularlv fromthe centerthereof to l Skeleton frame having a stemprojecting e inserted in the tube on. the film-holder, Whereby \vhen theparts are `assembled the spider orskeleton frame will. be disposed`parallel with the film and beyond the mouth 'of the patient tothuspermit the coneoi1 the X-r'a \'v apparatus to be quickly and'accuratelj7 adjusted by simply bringing the flaredv outer'end of thesame in proper relation to the vspider or skeleton frame; all as heresetFig; 3 is a detail'perspective view of the film-holder.

Figs, 'i and ivare elevations the film- "'.holden showing variations inthe arrangent 'f the film-holdinU-cli thereon here# me h p i fem 10'r1that when the spider is connected inafter explained. p

.said membersas 7a hold the filiali. The filin-holding-clip y'8, 65herein shown, isfinade of a`length of vvire. i

the teeth 'be disposed -ray' appara- .cation of the teeth `has attachedon one side thereof, prefera upon itself. to provide. members, bdisposedat right angles to .each other and aA clip 8 attached to theouter end of one-of to receive and firmly bent upon itself and shapedto-form astraight .bodyfportion with inwardly 4pro- ]ecting ends 8a, 8*,to

metal strip, asiby solder 11,'so-f'that it will laterallywith respectthereto, y prolecting in some `instances more or'. less at either side.thereof according to lthe lo- The-refore I contemplate. furnishing withthe indicator or guide, hereinafter particularly described, severalfilm-'holders with' different .arrangements of .th'eclip device, ,suchfor instance as shownin the several modifications 80 suggested in Figs.3, 4 and of the draw-.,.

ings. y

In carrying out my invention the member 7b of the film-holder .or bentmetal'strip) 7 lengthwise of the member and therefore'at right anglestothe Wire clip 48 andflm A supported therein; and the indicator orguide which I' employ-in'coniiection with 90 [this film-holder consistsof a spider or skeleton -frame 1.0, made of two o r more Wires crossingeach other centrally and provided with a steml'Oproject-ingperpendicularly from the center ofthe'spider at. 95-

the junction of the Wires, the wires constituting the spider and itsstem being connected together in anysuitable manner, as for instance bymeans of solder. 'The size ofthe Wire forming the stem 10* is suchthatthe 100 outer end thereof will fit snugly Within the tubeA 9 onthefilm-holder, and the length of said sten; is ysuch that lwhen tlie partsare assembled and applied in the operation, preliminary to taking thepicture by the X-ray 105 apparatus'the spider or guide devicewill belocated a`suitable distance beyond the mouthof the patient. Oneof-thefa'rms of the-spider may be, and preferably is, pr'ovided -with aconvenient inark ory pointer,. `11( '10", located at such a .distancefromrthe'.

, IP ,the edges of the mma. and Said Wire cligp isattaclied to the to bephotographed.l

t ly .theouter side, asmall tube 9,` disposed Car mark or pointer forthe purpose.

23o-the film-holder and said arm. swung lto position directlyiin frontof the 'idrn (see Figs'. l andQ) the aforesaid niarlror poin'her Will heon a perpendicular Aline from the cent-er or the tiln^i,`permittingofthe adjust-- `ment of the cone so that theo-enter of the rays Willstrike the center oit said film.,` The proper centering of the rays with.respect to the tilm may he' provided for, also, hy hendng the stem ofthe spider as shown in@ ,6, and in this instance that portion 12a "ofthis modified orrn'of'stem. 12 which is contiguou's 'to the radiatingarms l@ of the spider ymay he arranged 'on a perpendicular line from thecenter of'y the film andthe center 13 of the spider will then form theln thisv modificaion the portion 12" oi the stem co'nnects'the guidedevice with rhe film-holder,"

` will Serve as a guide in adjusting the cone of the X-rayappaiatustorthe purpose of properly direct-ing the rays towards the hlm.f

The operation of my improved dent-al nlrfrhoider will he readilreference to the drawings; Vfor the rilmhoh.

der seing supplied with a film adjusted in the mouth of pacient so rha'tthe nim 'will he located in ehe rear of the teetlrto bephotographed-oare being I taken of course to have saidv hlm para-'liniheaio. teeth-#and then the guide device appliedhy inserting the outer endof the /s in of the spider in the tube on the iilm-holde iffhen rireparts are thusassem'oled 1he spider will he located beyond the mouth'oi'I 'the patient andheing exactly parallel .with the face of the -filmthe cone of the -ray apparatus may he readily and conveniently adjusted,by bringingV the flared outer end or' thesame in such close proximityto thespider that said A*flared vend will properlzy1 regis ertherewithand consequently assure the proper projection of the rays to the film.0f course in adjusting :the conein proximit57 to the spider it should heu understood hy' eci the indicator' or pointer l0 or 13% will he on linewith the'centerfnf theilared end of said cone to center theyays' as'hereinheore explainec. After the cone' has been adjuet'ed il'froay heawning` to one 1 side and thea-:piden erguida device removed,

after which saidooieeia returned *to ite form# eel-'position for therequired e Xpofaure.I` This manipulation .of the cone, for 'the purposesof the 'desired adjust-ment-and shiftif e' more ment to permit ofthe4,removalyofthe spider.

is provided for in the conventional hype of "X-'ray apparatus From thforegoing, it Will he'lapparene that vmy improved film-holder andA guidede-l .vice provide for not only conveniently posiz tioning the filmvWithinthemolith ofthe pa-'vl taking .the picture ;l and it Will-.loenoted, also,-

tieiatfoiit also for quicklyand accurately atl-f justing theX-rayapparatus preliminary to' that the partsoonstituting'the completek de-vvice are light in construchion so that when applied the inconvenience to'thepatient `1s reduced to 'the minimum7 and that the faciliy ty'andaccuracyl With which the several adjustments may be made preliminary tothe exposure serves to' furthermlmmize' the 1nconvenience of taking therequired picture of the teeth to he treated as Well as insuring thetaking of a good picture by' proper direct-ion of the rays with respectto the teeth and film.-

l'. claim: Y Y I l. ln a dental' film-holder, the combination with avholder lfor the lilm of a guide `device comprising vertical andtransverse guide members and a stem for connecting the device' to theholder, whereby the aforesaid guide members are .disposed parallel with;

the iilmin the holder for the purpose set l forth. i f 2. ln a dentalhlm-holder, the combina- 'tionwvith a holder for the Film of a guidedevie comprisingr a spider, means Vfor connecting'v the spiderl to thefilm-holder7 and an indicating" mark on the spider .with relation to theHlm-holder, forthe purpose setforth.

B .ln combinationivith a dental film-M holder comprising a hoch7lportion having members at right angles lto each other anda p clipattached to one of-said member-s trans-` other member of thefilm-.holder llongitudmall-y thereof', and a spider having a sternadapted lto tit within said tuhesubstantially as shown and described.

' Winnmn o; novena. i

.105 `VerseljiY ,thereoia of a tuhe attached :to the i

